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Friday, September 10, 2010

Opening image of the Autumn season 2010



Close up of the NGC 7000, the "North America" nebula.
Image is composed from O-III and H-a narrowband channels to a bi-color image.
This palette is close to a visiblel spectrum.

Last night we had about three hours of astronomical darkness, up here 65N.
I'll shoot more H-alpha and the S-III channel later.

An experimental starless version to show the actual nebula

Processing work flow: 
Image acquisition, MaxiDL v5.07. 
Stacked and calibrated in CCDStack. 
Deconvolution with a CCDSharp, 30 iterations. 
Levels, curves and color combine in PS CS3.

Telescope, Meade LX200 GPS 12" @ f5 
Camera, QHY9 Guiding, SXV-AO @ 6Hz 
Image Scale, 0,75 arcseconds/pixel 
Exposures H-alpha 7x1200s, binned 1x1
O-III 1x1200s binned 3x3

Notes.
I had some problems with the camera orthogonality. Due that, stars at to and bottom are stretched.
I'll re shoot this material again after I have fixed the problem. 


Wednesday, September 8, 2010

Galaxy NGC 613




NGC 613, barred spiral galaxy in southern constellation Sculptor. 
Distance is about 65 million light years. Image is a broadband LRGB-composition.
This target has a smallish angular diameter, about 5,5' x 4,2'. I might try this one again with a better seeing, at this time seeing was about 3,5" FWHM.


The telescope:




Close up


Technical details:

16" RCOS ja Apogee U9000 camera. 
LRGB combo.
9x600s for the Luminance and 1x600s / RGB-channel . Dark and Flat calibrated.
Raw data is shared by Petri Kehusmaa and J-P Metsavainio

Processing workflow:
Image acquisition, MaxiDL v4.xxx
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.

Thursday, August 26, 2010

A collection of astronomical movies from my images





All movies are published before in this blog. There has been very few viewers for them though, so I think reposting might be a good idea. 

DEEP SKY TARGETS



Veil nebula as a 3D-transformation:
http://astroanarchy.blogspot.com/2009/12/new-version-about-veil-animation.html

Zoom in movies of Bubble and Soul nebulae:
http://astroanarchy.blogspot.com/2009/12/zoom-in-movie-test.html

Bubble nebula zoom out movie:
http://astroanarchy.blogspot.com/2010/01/bubble-zoomout.html

Heart nebula zoom out movie:
http://astroanarchy.blogspot.com/2010/01/hear-nebula-zoomout.html

Zoom out movies from Tulip and Crescent nebulae and Moon:
http://astroanarchy.blogspot.com/2010/01/three-new-zoomout-movies.html

IC410 and IC405 zoom in movie:
http://astroanarchy.blogspot.com/2010/01/ic-410-and-ic-405-as-zoomin-movie.html

M27 as a 3D-transformation movie:
http://astroanarchy.blogspot.com/2010/04/m27-experimental-3d-videos.html

Soul nebula 3D-conversion test:
http://astroanarchy.blogspot.com/2009/12/3d-conversion-testing.html


THE MOON


All Moon movies are made by re-projecting 2D-Moon image to a sphere. After that, the observation location can be freely selected, as long the area of interest stay on the visible area. I like this technique a lot, since the original image stays unprocessed!

Experimental Moon movies:
http://astroanarchy.blogspot.com/2009/05/new-video-material-from-astrotargets.html
(There is a movie of Andromeda galaxy as well)

A movie about principle of making Moon movies from 2D-material:
http://astroanarchy.blogspot.com/2009/06/how-to-3d-moon-movie.html

Moon movie experiments:
http://astroanarchy.blogspot.com/2009/06/more-experiments-with-3d-transform.html

Moon surface fly over movie:
http://astroanarchy.blogspot.com/2009/06/moon-surface-movie-from-2d-image.html


Wednesday, August 4, 2010

The "Bug Nebula", NGC6302 as an animation








The animation is made by splitting the original 2D-image to a layers by the image content. Layers are then taken to a 3D-modeling software, "TrueSpace", and projected to a 3D-surfaces and animated to a movie file.
Stars are placed to Z-axel by apparent brightness , brighter ones are closer.

Original images and imaging details can be found here:
http://astroanarchy.blogspot.com/2010/07/ngc-6302-bug-nebula.html


Transformed 2D-image of NGC6302.